Lee, Eun-Young. “Changes in 24-Hour Movement Behaviors Before- and During- COVID-19 Pandemic Among 94,624 South Korean Adolescents: Oral Presentation C5.3”. The Health & Fitness Journal of Canada 14, no. 3 (September 30, 2021). Accessed April 28, 2024. https://hfjc.library.ubc.ca/index.php/HFJC/article/view/671.